<template>
  <div>
    <!-- 顶部滑动条区域 -->
    <div id="slider" class="mui-slider">
      <div
        id="sliderSegmentedControl"
        class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted"
      >
        <div class="mui-scroll">
          <a class="mui-control-item mui-active">全部</a>
          <a class="mui-control-item">热点</a>
          <a class="mui-control-item">北京</a>
          <a class="mui-control-item">社会</a>
          <a class="mui-control-item">娱乐</a>
          <a class="mui-control-item">科技</a>
          <a class="mui-control-item">社会</a>
          <a class="mui-control-item">娱乐</a>

          <a :class="['mui-control-item',item.id==0?'mui-active':'']" 
          v-for="item in cates" :key="item.id" @tap="getPhotoListByCateId(item.id)">{{item.title}}</a>
         
        </div>
      </div>
    </div>

    <!-- 图片列表区域 -->
    <ul class="photo-list">


      <router-link to="/home/photolist/photoinfo" tag="li">
        <img src="../../img/1.jpg" alt />
        <div class="info">
            <h1 class="info-title">铵出口量出来看</h1>
            <div class="info-body">擦擦擦擦家经常保觉侬看发罚款发分 分持安监办饭卡啊长时间不错暗黑城AVSV看阿女阿绿把v卡cake </div>
        </div>
      </router-link>


      <!-- <router-link to="/home/photolist/photoinfo" tag="li" v-for="item in list" :key="item.id">
        <img :src="list.img_url" alt />
        <div class="info">
            <h1 class="info-title">铵出口量出来看</h1>
            <div class="info-body">擦擦擦擦家经常保觉侬看发罚款发分 分持安监办饭卡啊长时间不错暗黑城AVSV看阿女阿绿把v卡cake </div>
        </div>
      </router-link> -->


      <li>
        <img src="../../img/2.jpg" alt />
      </li>
      <li>
        <img src="../../img/3.jpg" alt />
      </li>
      <li>
        <img src="../../img/4.jpg" alt />
      </li>
      <li>
        <img src="../../img/5.jpg" alt />
      </li>
      <li>
        <img src="../../img/6.jpg" alt />
      </li>
      <li>
        <img src="../../img/7.jpg" alt />
      </li>
      <li>
        <img src="../../img/8.jpg" alt />
      </li>
      <li>
        <img src="../../img/9.jpg" alt />
      </li>



      <router-link v-for="item in list" :key="item.id" to="'/home/photoinfo/'+item.id" tag="li">
        <img v-lazy="item.img_url" />
        <div class="info">
            <h1 class="info-title">{{item.title}}</h1>
            <div class="info-body">{{item.zhaiyao}}</div>
        </div>
      </router-link>
    </ul>
  </div>
</template>



<script>
// 1. 导入 mui 的js文件
import mui from "../../lib/mui/js/mui.min.js";

import { Toast } from "mint-ui";

export default {
  data() {
    return {
      cates: [], //所有分类的列表数组
      list: [] //图片列表
    };
  },
  created() {
    this.getAllCategory();
    // 默认进入页面，就主动请求 所有图片列表的数据
    this.getPhotoListByCateId(0);
    // this.getPhotoListByCateId()
  },
  mounted() {
    // 当 组件中的DOM结构被渲染好并放到页面中后，会执行这个 钩子函数
    // 如果要操作元素了，最好在 mounted 里面，因为，这里时候的 DOM 元素 是最新的
    // 2. 初始化滑动控件
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005, //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
  },
  methods: {
    getAllCategory() {
      this.$http.get("api/getimgcategory").then((result) => {
        if (result.body.status === 0) {
          result.body.messsge.unshift({ title: "全部", id: 0 });
          this.cates = result.body.messsge;
        } else {
          Toast("加载数据失败");
        }
      });
    },

    //自己写的代码
    // getPhotoListByCateId(){
    //     for(var i=1;i<10;i++){
    //         var imglist={img_url:"../../img/"+i+".jpg",id:i}
    //         this.list.push(imglist)
    //     }
    // }

    // 观看视频代码   图片列表区域
    getPhotoListByCateId(cateid) {
      this.$http.get("api/getimages/" + cateid).then((result) => {
        if (result.body.status === 0) {
          this.list = result.body.messsge;
        } else {
          Toast("加载数据失败");
        }
      });
    },
  },
};
</script>

<style lang="scss" scope>
* {
  touch-action: pan-y;
}
.photo-list {
  list-style: none;
  margin: 0;
  padding: 10px;
  padding-bottom: 0;
  li {
      position: relative;
    text-align: center;
    background-color: #ccc;
    margin-bottom: 10px;
    box-shadow: 0 0 9px #999;
    img {
      width: 100%;
      vertical-align: middle;
      border-radius: 5px;
    }
    img[lazy="loading"] {
      width: 40px;
      height: 300px;
      margin: auto;
    }
    .info{
        position: absolute;
            color: #fff;
            text-align: left;
            bottom: 0;
            background-color: rgba(0, 0, 0,0.4);
            max-height: 84px;
        .info-title{
            color: #fff;
            font-size: 14px;
        }
        .info-body{
            font-size: 13px;
        }
    }
  }
}
</style>